BE650494A - - Google Patents

Info

Publication number
BE650494A
BE650494A BE650494A BE650494A BE650494A BE 650494 A BE650494 A BE 650494A BE 650494 A BE650494 A BE 650494A BE 650494 A BE650494 A BE 650494A BE 650494 A BE650494 A BE 650494A
Authority
BE
Belgium
Prior art keywords
information
intensity
symbol
light
light beam
Prior art date
Application number
BE650494A
Other languages
English (en)
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to BE650494A priority Critical patent/BE650494A/fr
Publication of BE650494A publication Critical patent/BE650494A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
BE650494A 1964-07-13 1964-07-13 BE650494A (forum.php)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE650494A BE650494A (forum.php) 1964-07-13 1964-07-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE650494A BE650494A (forum.php) 1964-07-13 1964-07-13

Publications (1)

Publication Number Publication Date
BE650494A true BE650494A (forum.php) 1964-11-03

Family

ID=3846714

Family Applications (1)

Application Number Title Priority Date Filing Date
BE650494A BE650494A (forum.php) 1964-07-13 1964-07-13

Country Status (1)

Country Link
BE (1) BE650494A (forum.php)

Similar Documents

Publication Publication Date Title
FR2524162A1 (fr) Appareil et procede de controle de negatifs et dispositif de cadrage de masques
JPH06506555A (ja) オーバーサンプリングによる情報復元のための記憶媒体、装置、及び方法
US4616129A (en) Light detecting apparatus
FR2608789A1 (fr) Dispositif de test pour disques optiques
FR2623351A1 (fr) Circuit de modulation de phase, repeteur le comportant, et ensemble de telecommunications comportant des repeteurs
FR2478413A1 (fr) Procede pour fixer les valeurs de densites dans une machine de reproduction d'images
US4355383A (en) Apparatus for scanning variable area optical sound tracks by parallel processing discrete photosensor outputs
FR2859563A1 (fr) Appareil de lecture pour livre audio et carte vocale, et procede de commande dudit appareil
EP0500461B1 (fr) Dispositif de détection de l'état logique d'un composant dont l'impédance varie suivant cet état
BE650494A (forum.php)
EP0348792A1 (fr) Procédé et dispositif de traitement de signaux électriques provenant de l'analyse d'une ligne d'une image
BE557894A (fr) dispositif pour compter des particules
EP0627113A1 (fr) Support d'enregistrement d'informations, enregistreur, lecteur et procede d'enregistrement
EP0045252A2 (fr) Dispositif de lecture ou de restitution d'un document, en particulier pour appareil de télécopie
US1975929A (en) Sound record and method of making the same
US4551827A (en) Fluorescent soundtrack readout system
Stryker Scanning losses in reproduction
US4599715A (en) Method and apparatus for sound track reproduction
US1993929A (en) Sound recording and reproducing
CA1124402A (en) Apparatus for scanning variable area optical sound tracks
FR2745902A1 (fr) Systeme de photodetection et procede associe d'analyse d'un flux lumineux
US1552926A (en) Photo-electric means for reproducing sound from graphical records
US3388402A (en) Optical correlation
Miller et al. Optical sound recording with a silicon carbide electroluminescent diode
US1647353A (en) Photo-electric means for reproducing sound from graphical records